'Starter' Earth grew in a flash. Here's how the planet did it.

[admin]

Proto-Earth was on a fast track to planet formation.

'Starter' Earth grew in a flash. Here's how the planet did it. : Read more

 

[TorbjornLarsson]

Proto-Earth was on a fast track to planet formation.

'Starter' Earth grew in a flash. Here's how the planet did it. : Read more

This seems fairly likely, see how they can robustly predict the isotope differences between Earth versus Mars and Vesta [figure 2 in the paper] that formed further out and follows the Fe/Ca mixing line while Earth do not. It would be very hard to explain unless early core formation and late mantle contribution from pebbles in the Earth case. Formation within 5 Myrs would also explain why the inner planets have orbits in a plane while Mars from similar isotope results likely formed later and it, as well as the asteroid belt debris material, got stunted by the outer planets migration at 10 Myrs or so just as the protoplanetary disk dissipated/was dissipated [ https://advances.sciencemag.org/content/advances/6/7/eaay2338.full.pdf , https://www.sciencemag.org/news/2020/01/cataclysmic-bashing-giant-planets-occurred-early-our-solar-systems-history ]. That the protoEarth Tellus was hit by a Mars sized Theia planetesimal at 50 Myrs could have been a late result of that outer system upheaval, models of a glancing impact that would create Moon show that Theia material could have gone to the core.

Quite a change from the picture a few years back, when Mars was believed to have formed much earlier, no one knew when Earth-Moon impact happened and the outer system migration was believed to have happened 3.9 billion years ago.

 

[CMAenergy]

Proto-Earth was on a fast track to planet formation.

'Starter' Earth grew in a flash. Here's how the planet did it. : Read more

The bible tells you the earth was formed in a moment of time, where he spoke and the earth was created.
Science is slowly catching up !
Read some more of the good book and you may learn something !

 

[TorbjornLarsson]

The bible tells you the earth was formed in a moment of time, where he spoke and the earth was created.

Science is slowly catching up !

Read some more of the good book and you may learn something !

It's difficult to discern intent from a comment, so in case your comment lacked the /sarcasm tag on purpose:

Erroneous superstition, especially obvious in the article context of millions of years formation process, and a good example why we know we cannot learn anything from freewheeling myth.

Also, seeing how religiosity correlates well with dysfunctional societies and secularity with nations being better off, we know that the myth does not work to improve society (is "good"). For example:

"[Comparing the 10 most and the 10 least secular nations out of a set of 68:] Indicators suggest that the less religious nations are much better off. Average GDP per capita in the least religious countries is more than five times higher, while the unemployment rate is more than twice as low and the poverty rate is one and a half times lower. The homicide rate is five times lower. Life expectancy is 22 percent higher, and infant mortality is 1,000 percent lower — in part because the least religious nations spend 50 percent more per capita on health care. The least religious countries are also better educated, with a mean 12 years of schooling per capita vs. 7½ years in the most religious countries. Income inequality is 24 percent lower in the least religious countries, and gender inequality (as measured by the World Bank) is more than 400 percent lower. Finally, the least religious countries are freer, with an average score of 87.6 from Freedom House, compared to 56.5 for the most religious countries."

[ https://www.washingtonpost.com/opinions/2020/02/19/william-barrs-america-vs-reality-2020/ ]

Religiosity allows *1,000 percent more infant deaths*! That can't be "good" in anyone's summary of what it does.

Remember:

"Religion is an insult to human dignity. With or without it you would have good people doing good things and evil people doing evil things. But for good people to do evil things, that takes religion."

- Steven Weinberg, Nobel Laureate

[ https://en.wikiquote.org/wiki/Steven_Weinberg ]